KR20160114969A - Goose neck for diecasting apparatus with detachable heater - Google Patents

Goose neck for diecasting apparatus with detachable heater Download PDF

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Publication number
KR20160114969A
KR20160114969A KR1020150041534A KR20150041534A KR20160114969A KR 20160114969 A KR20160114969 A KR 20160114969A KR 1020150041534 A KR1020150041534 A KR 1020150041534A KR 20150041534 A KR20150041534 A KR 20150041534A KR 20160114969 A KR20160114969 A KR 20160114969A
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KR
South Korea
Prior art keywords
gooseneck
cylinder hole
detachable member
heater
molten metal
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KR1020150041534A
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Korean (ko)
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KR101708797B1 (en
Inventor
김영희
Original Assignee
주식회사 지에스메탈
김영희
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Application filed by 주식회사 지에스메탈, 김영희 filed Critical 주식회사 지에스메탈
Priority to KR1020150041534A priority Critical patent/KR101708797B1/en
Publication of KR20160114969A publication Critical patent/KR20160114969A/en
Application granted granted Critical
Publication of KR101708797B1 publication Critical patent/KR101708797B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/30—Accessories for supplying molten metal, e.g. in rations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2218—Cooling or heating equipment for dies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

The present invention relates to a goose neck for a hot chamber die casting device having a detachable heater. The present invention enables rapid preheating without unreasonable and bothersome problems of temporarily using a heater or a torch to preheat the goose neck before a molding operation by including a detachable heater. The present invention comprises: a goose neck main body which has a cylinder hole of being open upwards such that a piston reciprocates inside, a molten metal inlet of enabling molten metal to flow into a melting furnace by connecting the cylinder hole with the outside, and a discharge hole of discharging molten metal extruded by a piston to the cavity of a mold by being connected with the cylinder hole; a detachable member attached and detached from a nozzle unit including the discharge hole in the goose neck main body and capable of interposing a heater between the detachable member and the nozzle unit when being attached; and a heater selectively interposed between the goose neck main body and the detachable member.

Description

[0001] Description [0002] GOOSE NECK FOR DIET APPARATUS AND DETACHABLE HEATER [0003]

The present invention relates to a gooseneck for a die casting apparatus, and more particularly to a configuration for a gooseneck for a diecasting apparatus, in which a heater is detachably mounted, thereby making it possible to preheat the gooseneck before the molding operation by using a heater or torch temporarily. To a gooseneck for a hot chamber die casting apparatus having a detachable heater.

Generally, light metals are metals with a specific gravity smaller than that of titanium (specific gravity 4.5). Beryllium (specific gravity 1.85), magnesium (1.74), aluminum (2.7) and titanium (4.5) are typical examples. Among these, aluminum was the first to be put to practical use, and titanium was widely used as an aircraft material. Alkaline earth metals such as silicon (2.3), yttrium (4.3), alkali metals (1 or less) such as sodium, potassium and lithium and alkaline earth metals such as calcium (1.5) also enter the light metal from the point of view of small specific gravity, It refers to the four metals in the preceding example, which are materials.

Magnesium is the eighth most abundant element, accounting for 2.7% of the Earth's surface. Magnesium alloy has a specific gravity of 1.79 ~ 1.81, which is lightweight and has a weight reduction effect of around 70% of that of steel. It has been applied to a wide range of fields because it has excellent non-strength, castability, machinability, electromagnetic shielding ability, The use of which is increasing rapidly.

As a representative example of the light metal casting method, a die casting method is mainly used, and a die casting method includes a hot chamber, a cold chamber, and a thixomolding.

In the hot chamber type, an injection cylinder is installed in a melting furnace, and a high-temperature molten metal is pressurized so as to flow into a mold.

In the cold chamber type, a mold casting molding machine and a light metal melting furnace are individually constituted, and the melted molten metal is poured into an injection sleeve of a mold casting molding machine, and the molten metal is injected into the mold by an injection plunger.

The thixomolding method is a technology that combines the conventional injection molding method and metal die casting method and uses light metal raw material in chip form like resin injection.

1 and 2 are a perspective view and a side sectional view of a gooseneck according to the prior art.

As shown in the figure, the gooseneck 11 according to the related art is formed in a substantially cylindrical shape, and is means for transferring the molten metal filled in the melting furnace 10 to the cavity of the metal mold. In the gooseneck 11, The other end of the cylinder hole 22 is connected to the cylinder hole 22. The other end of the cylinder hole 22 is connected to the cylinder hole 22. The other end of the cylinder hole 22 is connected to the cylinder hole 22, And a discharge port 20 for discharging the molten metal to the cavity of the mold is formed.

Accordingly, the molten metal in the melting furnace is supplied to the cavity of the mold via the melt inlet 21, the cylinder hole 22, and the discharge port 20 while being connected with the operation of the piston.

On the other hand, the gooseneck requires work to preheat the work up to the working temperature before proceeding with a full-scale work of discharging the molten metal. In the case of the gooseneck according to the prior art, the gooseneck is heated by inserting the heater directly into the discharge port However, since the operation can not be performed until the heater inserted into the discharge port 20 is removed, a method of heating the nozzle portion formed with the discharge port 20 with a torch is mainly used in the actual field.

In addition, since the body between the upper portion of the cylinder hole 22 and the molten metal rising path 23 is thin, the gooseneck according to the related art is structurally weak, and thus cracks are frequently generated.

Korean Utility Model Publication No. 2010-0009631

Accordingly, it is an object of the present invention to provide an apparatus and a method for using a heater or a torch to temporarily preheat a gooseneck before a molding operation by using a detachable heater. The present invention provides a gooseneck for a hot chamber die casting apparatus having a detachable heater that enables rapid preheating without irrational and troublesome problems.

In order to accomplish the above object, a gooseneck for a hot chamber die casting apparatus having a detachable heater according to the technical idea of the present invention comprises a cylinder hole opened upward to reciprocate the piston therein, And a discharge port communicating with the cylinder hole and discharging the molten metal extruded by the piston toward the cavity of the metal mold; And a detachable member that is detachably attached to the nozzle portion formed with the ejection port and capable of interposing a heater between the nozzle portion and the gooseneck body when attached to the gooseneck body.

Here, the detachable member may be attached to and detached from the left side of the nozzle portion and the postal portion thereof, respectively.

In addition, the nozzle unit and the detachable member may have first and second insertion holes formed in the longitudinal direction in the vertical direction so that the heater can be inserted into the surfaces facing each other.

In addition, the detachable member may be attached to the nozzle unit by bolts.

The detachable member is made of a magnetic material and attached to the nozzle by magnetic force, and a plurality of insertion grooves and insertion protrusions corresponding to each other are provided on the surfaces of the detachable member and the nozzle portion facing each other .

The cylinder hole includes a lower cylinder hole in which a lower end portion of the piston reciprocates and a molten metal inlet port of the molten metal is formed, and an upper cylinder hole formed in a larger size on the upper portion of the lower cylinder hole, And may be formed in a shape that is not formed concentrically but biased toward the opposite side where the discharge port is formed.

The lower cylinder hole may have a smaller diameter in the lateral direction than a diameter in the forward and backward directions.

The gooseneck for a hot-chamber die casting apparatus according to the present invention is provided with a detachable heater, so that the preheating of the gooseneck before the molding operation can be quickly preheated without unreasonable troublesomeness such as using a heater or a torch temporarily.

Further, according to the present invention, since the thicknesses of the partition walls existing between the upper cylinder hole and the molten metal rising passage are increased by the eccentric structure of the upper cylinder hole and the upper cylinder hole, the crack prevention against the structural weak portion is effectively suppressed .

Figure 1 is a perspective view of a gooseneck according to the prior art;
Figure 2 is a side cross-sectional view of a gooseneck according to the prior art;
3 is a perspective view of a gooseneck for a hot chamber die casting apparatus according to an embodiment of the present invention;
4 is an exploded perspective view illustrating a configuration of a gooseneck for a hot chamber die casting apparatus according to an embodiment of the present invention.
5 is a longitudinal sectional view for explaining an internal configuration of a gooseneck for a hot chamber die casting apparatus according to an embodiment of the present invention
6 is a plan view of a gooseneck for a hot chamber die casting apparatus according to an embodiment of the present invention.
7 is a view for explaining an eccentric configuration of an upper cylinder hole in a gooseneck for a hot chamber die casting apparatus according to an embodiment of the present invention;

A detailed description will be given of a gooseneck for hot chamber die casting according to embodiments of the present invention with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention, and are actually shown in a smaller scale than the actual dimensions in order to understand the schematic structure.

Also, the terms first and second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

FIG. 3 is a perspective view of a gooseneck for a hot chamber die casting apparatus according to an embodiment of the present invention, FIG. 4 is an exploded perspective view for explaining a configuration of a gooseneck for a hot chamber die casting apparatus according to an embodiment of the present invention, 1 is a longitudinal sectional view for explaining an internal configuration of a gooseneck for a hot chamber die casting apparatus according to an embodiment of the present invention. 6 is a plan view of a gooseneck for a hot-chamber die casting apparatus according to an embodiment of the present invention. FIG. 7 is a cross-sectional view of a gooseneck for a hot-chamber die casting apparatus according to an embodiment of the present invention, to be.

As shown in the figure, a gooseneck for a hot chamber die casting apparatus according to an embodiment of the present invention includes a gas nozzle 110 having a cylinder hole, a molten metal inlet 122, a molten metal uprising 123, A detachable member 132 which is attached to and detached from the nozzle unit 110a so that the heater 131 can be interposed therebetween, and a heater 131.

In the case of the detachable member 132, the linear heater 131 has been previously inserted into the discharge port 124, or the torch nozzle unit 110a has been heated so as to deviate from the temporary precautionary method so that the heater 131 can be easily and stably To the nozzle unit 110a so that the preheating operation can be performed.

The detachable member 132 is attached to and detached from the left side of the nozzle unit 110a having the discharge port 124 formed in the gooseneck body 110 and the postal unit independently of the nozzle unit 110a, And a first insertion hole 111 and a second insertion hole 132a formed on the surface facing each other so as to be inserted through the heater 131 similar to the first insertion hole 111 and the second insertion hole 132a.

Here, the detachable member 132 can be attached to the nozzle unit 110a simply by fastening the bolt 133, and can be attached by a magnetic force. The detachable member 132 is at least in contact with the nozzle 110a of the body 110. The detachable member 132 may be formed of a magnetic material, Should be made of a metallic material that is locally attracted to the magnetic force. In addition, a plurality of insertion grooves 132b and insertion protrusions 112 corresponding to each other are provided on the surfaces of the detachable member 132 and the nozzle portion 110a facing each other. By the formation of the insertion groove 132b and the insertion protrusion 112, it is possible to maximize the adhesion force between the detachable member 132 and the nozzle unit 110a by the magnetic force.

The detachable member 132 is formed in the shape of a small plate (or rectangular parallelepiped) as shown in FIGS. 3, 4, and 6, and is attached to the left side of the nozzle unit 110a and the zipper. Since the left and right widths of the nozzle unit 110a are narrower than other parts of the body 110 in the left and right sides of the nozzle unit 110a, an idle space is formed, and an installation area of the detachable member 132 is formed in the idle space .

When the detachable detachable member 132 having such a configuration is provided, a preheating operation can be performed between the detachable member 132 and the nozzle portion 110a of the body 110 through the linear heater 131, The casting operation of the molten metal can be carried out immediately without the troublesome removal of the heater 131 interposed therebetween.

The gooseneck body 110 includes a cylinder hole (upper cylinder hole 121b and lower cylinder hole 121a) opened upward to reciprocate the piston, and a valve hole for connecting the cylinder hole to the outside to allow the molten metal to flow into the melting furnace A discharge port 124 communicating with the lower cylinder hole 121a of the cylinder hole to discharge the molten metal extruded by the piston toward the cavity of the metal mold and a discharge port 124 for discharging the molten metal toward the cavity of the metal mold through the lower cylinder hole 121a and the discharge port 124 The lower end of the piston is connected to a lower cylinder hole 121a through which the molten metal inlet 122 is formed and a lower end of the lower cylinder hole 121a is connected to the lower cylinder hole 121a. And an upper cylinder hole 121b formed in a larger size on the upper portion. The configuration of the gooseneck body 110 is not different from the known art.

6 and 7, the upper cylinder hole 121b may not be formed concentrically with respect to the lower cylinder hole 121a, but may be biased toward the rear side opposite to the side where the discharge port 124 is formed, And is formed in the form of a large difference. Referring to FIG. 7, there is a considerable variation in the center line of the upper cylinder hole 121b and the center line of the lower cylinder hole 121a. In addition, the diameter of the lower cylinder hole 121a in the left-right direction is smaller than the diameter of the lower cylinder hole 121a in the front-rear direction.

According to the structure in which the upper cylinder hole 121b and the lower cylinder hole 121a have an eccentric structure with respect to each other, the upper cylinder hole 121b and the lower cylinder hole 121b, which are vulnerable to structural cracks in the gooseneck body 110, The neck of the partition wall 110b (see FIG. 5) existing between the molten metal rising paths 123 can be thickened without changing the outer shape of the gooseneck, thereby effectively preventing cracks. Further, by forming the upper cylinder hole 121b into an elliptical shape instead of a simple circular shape, a greater durability that can withstand the pressure due to the molten metal can be ensured.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

110: gooseneck body 110a: nozzle part
110b: partition wall 111: first insertion hole 21a
112: insertion protrusion 121a: lower cylinder hole
121b: upper cylinder hole 122: molten metal inlet
123: rising of the molten metal 124:
131: heater 132:
132a: insertion hole 132b: insertion groove

Claims (8)

In a gooseneck for a hot chamber die casting apparatus,
A molten metal inlet communicating with the cylinder hole to allow the molten metal to flow in the molten metal furnace and a molten metal extruded by the piston into a mold cavity; A gooseneck body formed with a discharge port for discharging toward the cavity;
A detachable member detachably attached to the nozzle portion formed with the ejection port and capable of interposing a heater between the nozzle portion and the gooseneck body;
And a heater selectively disposed between the gooseneck body and the detachable member. The gooseneck for a hot chamber die casting apparatus according to claim 1, The method according to claim 1,
And the detachable member is attached to and detached from the left side of the nozzle portion and the postal portion of the gooseneck. 3. The method of claim 2,
Wherein the nozzle portion and the detachable member are formed with first insertion holes and second insertion holes in the vertical direction in the longitudinal direction so that heaters can be inserted into the surfaces facing each other. The method of claim 3,
Wherein the detachable member is attached to the nozzle unit by bolts. ≪ RTI ID = 0.0 > 11. < / RTI > The method of claim 3,
Wherein the detachable member is made of a magnetic material and is attached to the nozzle by magnetic force, and a plurality of insertion grooves and insertion protrusions corresponding to each other are provided on the surfaces of the detachable member and the nozzle portion facing each other. Gooseneck for. The method of claim 3,
And the upper cylinder hole is formed concentrically with respect to the lower cylinder hole so that the upper cylinder hole is formed concentrically with respect to the lower cylinder hole Is formed in an eccentric shape which is biased toward the opposite side where the discharge port is formed. The method according to claim 6,
Wherein the lower cylinder hole has a smaller diameter in a transverse direction than a diameter in a forward and backward direction of the gooseneck. A hot chamber die casting apparatus comprising a gooseneck according to any one of claims 1 to 7.
KR1020150041534A 2015-03-25 2015-03-25 Goose neck for diecasting apparatus with detachable heater KR101708797B1 (en)

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KR101708797B1 KR101708797B1 (en) 2017-02-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190087182A (en) * 2018-01-16 2019-07-24 (유)원테크 Heater magnet for extrusion die and process for extruding production

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10225753A (en) * 1997-02-13 1998-08-25 Toshiba Mach Co Ltd Immersion type injection pump in hot chamber die casting machine
JP2004337929A (en) * 2003-05-16 2004-12-02 Toyo Mach & Metal Co Ltd Die casting apparatus
KR20100009631A (en) 2007-05-11 2010-01-28 도요타 지도샤（주） Fuel cell vehicle
KR20100009631U (en) * 2009-03-23 2010-10-01 황선광 Hot chamber die casting machine
KR101067002B1 (en) * 2011-03-18 2011-09-22 정광주 Goose neck for hot chamber die casting

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10225753A (en) * 1997-02-13 1998-08-25 Toshiba Mach Co Ltd Immersion type injection pump in hot chamber die casting machine
JP2004337929A (en) * 2003-05-16 2004-12-02 Toyo Mach & Metal Co Ltd Die casting apparatus
KR20100009631A (en) 2007-05-11 2010-01-28 도요타 지도샤（주） Fuel cell vehicle
KR20100009631U (en) * 2009-03-23 2010-10-01 황선광 Hot chamber die casting machine
KR101067002B1 (en) * 2011-03-18 2011-09-22 정광주 Goose neck for hot chamber die casting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190087182A (en) * 2018-01-16 2019-07-24 (유)원테크 Heater magnet for extrusion die and process for extruding production

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